guest ::
| Home > Publications database > On the use of multilayer Laue lenses with X-ray Free Electron Lasers |
| Home > Publications database > On the use of multilayer Laue lenses with X-ray Free Electron Lasers |
| Preprint | PUBDB-2022-01573 |
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
2022
arXiv
This record in other databases: 
Please use a persistent id in citations: doi:10.48550/ARXIV.2203.11712 doi:10.3204/PUBDB-2022-01573
Report No.: arXiv:2203.11712
Abstract: Multilayer Laue lenses were used for the first time to focus x-rays from an X-ray Free Electron Laser (XFEL). In an experiment, which was performed at the European XFEL, we demonstrated focusing to a spot size of a few tens of nanometers. A series of runs in which the number of pulses per train was increased from 1 to 2, 3, 4, 5, 6, 7, 10, 20 and 30 pulses per train, all with a pulse separation of 3.55 us, was done using the same set of lenses. The increase in the number of pulses per train was accompanied with an increase of x-ray intensity (transmission) from 9% to 92% at 5 pulses per train, and then the transmission was reduced to 23.5 % when the pulses were increased further. The final working condition was 30 pulses per train and 23.5% transmission. Only at this condition we saw that the diffraction efficiency of the MLLs changed over the course of a pulse train, and this variation was reproducible from train to train. We present the procedure to align and characterize these lenses and discuss challenges working with the pulse trains from this unique x-ray source.
Keyword(s): Accelerator Physics (physics.acc-ph) ; Optics (physics.optics) ; FOS: Physical sciences
; 
|
The record appears in these collections: |
PDF
PDF (PDFA)